| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,679 |
| US States Quiz | 0 | - | 5.00 | 16,984,246 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,495 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,427 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,315 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,451 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,234 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,077 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,110 |
| Pixelated United States Map | 0 | - | 4.88 | 94,762 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,454 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,377 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,703 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,999 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,196 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,219 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,272 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,284 |
| U.S. States By Population | 0 | - | 4.92 | 154,087 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,154 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,850 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,814 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,514 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,054 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,372 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,121 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,565 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,214 |
| US States with an Empty Map | 0 | - | 5.00 | 628,218 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,402 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,993 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,975 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,095 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,093 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,423 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,795 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,413 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,761 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,179 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,931 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,234 |
| States of Mexico | 0 | - | 4.96 | 178,022 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,549 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,904 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,122 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,798 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,714 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,668 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,270 |
| United States Country Quiz | 0 | - | 4.43 | 102,142 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,047 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,592 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,043 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,185 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 77,006 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,875 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,294 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,471 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,413 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,132 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,527 |
| New England States | 0 | - | 4.51 | 59,891 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,033 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,109 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,113 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,266 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,126 |
| U.S. States by Borders | 0 | - | 4.62 | 35,462 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,671 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,318 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,432 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,948 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,241 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,712 |
| Chicago City Trivia | 0 | - | 4.31 | 31,516 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,853 |
| History of Pennsylvania | 0 | - | 4.16 | 7,163 |
| History of Virginia | 0 | - | 4.33 | 11,640 |
| Washington State by Picture | 0 | - | 4.26 | 7,754 |
| Flags of North and South America | 0 | - | 4.99 | 376,572 |
| Belize Country Quiz | 0 | - | 4.85 | 21,075 |
| Top U.S. Universities | 0 | - | 4.15 | 145,751 |
| Largest United States Airlines | 0 | - | 4.39 | 55,142 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,943 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,862 |
| U.S. States by Governor | 0 | - | 4.43 | 18,111 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,762 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,769 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,220 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 25,172 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,912 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,649 |
| Famous Missourians | 0 | - | 4.12 | 6,434 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,343 |
| North Carolina... or South Carolina? | 0 | - | 4.21 | 10,558 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,738 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,519 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,575 |
| Famous People from Tennessee by Picture | 0 | - | 4.33 | 27,458 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,274 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,859 |
| Events in U.S. History | 0 | - | 4.41 | 28,811 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,118 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,061 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,610 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,326 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,777 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,558 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,368 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,927 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,100 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,666 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,750 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,972 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,981 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,428 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,009 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,566 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,832 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,809 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,188 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,361 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,471 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,498 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,479 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,185 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,379 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,600 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,503 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,661 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,831 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,578 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,956 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,009 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,711 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,283 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,463 |
| American Founding Fathers | 0 | - | 4.42 | 23,273 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,691 |
| California Groups of Things | 0 | - | 4.26 | 45,747 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,318 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,798 |
| New York Groups of Things | 0 | - | 4.39 | 71,941 |
| New York City Geography | 0 | - | 4.43 | 33,181 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 26,582 |
| People on Money - United States | 0 | - | 4.31 | 63,428 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,580 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,201 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,044 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,561 |
| Flyover States | 0 | - | 4.53 | 29,586 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,251 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,383 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,456 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,179 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,943 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,316 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,664 |
| The Only American Country ... | 0 | - | 4.92 | 122,164 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,608 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,852 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,749 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,896 |
| Names of Generations | 0 | - | 4.09 | 45,479 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,073 |
| Regions of U.S. States | 0 | - | 4.37 | 44,159 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,416 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,628 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,927 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,361 |
| Movies by State | 0 | - | 4.27 | 40,605 |
| Canada Country Quiz | 0 | - | 4.55 | 132,997 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,573 |
| Canada A-Z | 0 | - | 4.73 | 32,953 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,589 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 94,585 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,787 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 53,048 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 49,060 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,327 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,785 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,717 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,727 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,542 |
| States of Brazil | 0 | - | 4.97 | 89,578 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,970 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,959 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,865 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,232 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,006 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,359 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,434 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,395 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,507 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,833 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,079 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,609 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,078 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,212 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,561 |
